*{
	margin: 0;
	padding: 0;
}

body{
	background: #333;
}

.content{
	width:800px;
	height: 400px;
	margin: 0 auto;
	margin-top: 50px;
	
}
@media screen and (min-width:1200px){
	.content .box{
	width:200px;
	height:200px;
	float: left;
	margin: 0 33px;

}
}
	

@media screen and(min-width: 600px){
	.content .box{
	width:200px;
	height:200px;

}
}

.box1 .icon{
	width: 128px;
	height:128px;
	display: block;
	background:  url('img/1.png') no-repeat;
	margin: 0 auto;
	transition: all 0.2s;
}
.box2 .icon:hover{
	transform: scale(1.2) rotate(360deg);
}
.box2 .icon{
	width: 128px;
	height:128px;
	display: block;
	background:  url('img/2.png') no-repeat;
	margin: 0 auto;
	transition: all 0.2s;
}
.box3 .icon:hover{
	transform: scale(1.2) rotate(360deg);
}
.box3 .icon{
	width: 128px;
	height:128px;
	display: block;
	background:  url('img/3.png') no-repeat;
	margin: 0 auto;
	transition: all 0.2s;
}
.box1 .icon:hover{
	transform: scale(1.2) rotate(360deg);
}

.box .button{
	width: 128px;
	height: 45px;
	line-height: 45px;
	background: url('img/4.png') no-repeat 90px center;
	display: block;
	margin: 0 auto;
	margin-top: 20px;
	font-family: "微软雅黑";
	font-size: 18px;
	font-weight: bolder;
	color:#2e77c1;
	text-decoration: none;
	padding-left:20px; 
	border: 3px solid rgba(255,255,255,0.8);
	transition: all 0.2s;
	position: relative;
}

.box .button:hover{
	background-position: 100px center;
	border: 3px solid rgba(255,255,255,1);
}

.box .line{
	background-color:#fff;
}

.box .line-top{
	width: 0px;
	height: 3px;
	display: block;
	position: absolute;
	top: -3px;
	left: -100%;
	transition: all 0.2s;
}
.box .button:hover .line-top{
   width:154px;
   left: -3px;
}

.box .line-bottom{
	width: 0px;
	height: 3px;
	display: block;
	position: absolute;
	bottom:-3px;
	right: -100%;
	transition: all 0.2s;
}
.box .button:hover .line-bottom{
   width:154px;
   right: -3px;
}

.box .line-left{
	width: 3px;
	height: 0px;
	display: block;
	position: absolute;
	bottom:-100%;
	left:-3px;
	transition: all 0.2s;
}
.box .button:hover .line-left{
   height:51px;
   bottom: -3px;
}

.box .line-right{
	width: 3px;
	height: 0px;
	display: block;
	position: absolute;
	top:-100%;
	right:-3px;
	transition: all 0.2s;
}
.box .button:hover .line-right{
   height:51px;
   top: -3px;
}